AIRCRAFT LANDING CONTROL USE FUZZY LOGIC CONTROLLER AND HEDGE ALGEBRA CONTROLLER

Abstract

Controlling flying objects is a complex problem and has attracted much attention from scientists in recent decades. Controlling an aircraft to land is one of that classes of problems. In this study, the controlled object is a simplified aircraft model. The difficulty in control is ensuring the relationship between the control force, altitude, and speed of the aircraft. Landing control for this aircraft model is performed by designing controllers based on fuzzy theory and hedge algebras theory with the same control rule base and parameters. The computational simulation results show that the superior efficiency in altitude reduction, landing speed reduction, maximum control force and computation time (CPU time) of the hedge algebras-based controller compared with that of the fuzzy theory-based controller. Therefore, it can be seen that the hedge algebras-based controller has the potential to be applied in this field as well as in motion control of other mechanical models.